A device for continuously ear-tagging experimental mice

By designing a device for continuous ear marking of experimental mice, the continuous sliding and device of multiple ear marks is achieved using the ear mark propulsion mechanism, the problem of low efficiency of existing ear marking clamps is solved and the efficiency of ear marking is improved.

CN222707295UActive Publication Date: 2025-04-04SHANGHAI GRIT BIOTECHNOLOGY CO LTD +1
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Patent Information

Application Number
CN202421503044.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-27
Publication Date
2025-04-04
Estimated Expiration
2034-06-27

AI Technical Summary

Technical Problem

The existing ear-label clamps cannot achieve continuous ear-labeling, and the efficiency is low, especially when the number of mice used in experiments is large, which consumes a lot of time.

Method used

A device for experimental mice to continuously tap the ear mark is designed, including the ear mark clamp body and the ear mark propulsion mechanism. The earmark propulsion mechanism realizes side-by-side arrangement and continuous sliding of multiple earmarks through the combination of bracket, guide column, propulsion slider and earmark propeller, ensuring that the earmarks can be continuously installed on the mouse ears.

Benefits of technology

The continuous ear marking of mice was achieved, which improved the efficiency of ear marking, especially when dealing with a large number of experimental mice, which significantly reduced the operating time.

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Abstract

A device for continuously ear-tagging experimental mice belongs to the technical field of experimental instruments. The invention aims to solve the problem that the existing ear-tagging forceps cannot achieve continuous ear-tagging. The utility model comprises an ear-tagging forceps body, which comprises an upper forceps and a lower forceps that are rotatably connected; and an ear-tagging propulsion mechanism, which comprises a bracket, a guide column and an ear-tagging propulsion device. The bracket is installed on the side of the jaws of the lower forceps, the guide column is installed on the bracket, and the ear tag is sleeved on the guide column and can slide; the ear-tagging propulsion device is installed on the bracket, and drives the ear tag to move to the jaws of the upper forceps and the lower forceps. The utility model is mainly used for continuously ear-tagging experimental mice.
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Description

Technical Field

[0001] The utility model belongs to the technical field of experimental instruments, and particularly relates to a device for continuously marking ears of experimental mice. Background Art

[0002] Laboratory mice are the most widely used experimental animals, including rats and mice. The genes of mice and humans are extremely similar. Compared with monkeys, pigs and other experimental animals, mice are small in size, easy to raise and manage, easy to control, and grow and reproduce quickly. Therefore, they have become the most widely used, most widely used, most diverse, and most clearly studied experimental animals. When doing laboratory mouse experiments, it is necessary to number and mark the randomly grouped mice, which is an important preparatory work. However, when marking the mice, it should be ensured that the number does not affect the animal's physiology or experimental response, and the number should be clear, easy to recognize, durable and applicable.

[0003] There are two commonly used methods for mouse ear tagging: one is to use ear tag pliers to make a hole in the ear or use scissors to cut a notch on the edge of the ear, with the left ear for the tens and the right ear for the ones. The other is to use ear tag pliers with mouse ear tags. Mouse ear tags are made of high-quality stainless steel with a smooth surface and corrosion resistance. The numbers are laser marked, with clear, flat, non-fading, and easy to use. Place the mouse ear tag in the fixed position of the ear tag pliers, align the ear tag bayonet with one of the mouse's ears, and press the ear tag pliers to fix the ear tag on the mouse's ear.

[0004] The ear tag clamp is used in conjunction with the ear tag. After one ear tag is used, another ear tag must be placed in the fixed position of the ear tag clamp. It is not possible to continuously tag the ears, which is inefficient, especially when there are many mice in the experiment, which takes a lot of time. In addition, when pressing the ear tag, since the ear tag is relatively narrow, if it is not placed correctly, it may cause the ear tag to be skewed and unable to be fixed on the mouse's ear. The ear tag needs to be reinstalled and the ear tag needs to be re-tagged, which is time-consuming and laborious. Utility Model Content

[0005] The utility model aims to solve the problem that the existing ear tagging forceps cannot achieve continuous ear tagging, and further provides a device for continuously tagging the ears of experimental mice.

[0006] The technical solution adopted by the utility model to solve the above technical problems is:

[0007] The invention discloses a device for continuously ear-tagging experimental mice, comprising an ear-tagging clamp body, which comprises an upper clamp and a lower clamp which are rotatably connected; and an ear-tagging pushing mechanism, which comprises a bracket, a guide column and an ear-tagging pushing device, wherein the bracket is installed at the side of the jaw of the lower clamp, the guide column is installed at the bracket, and the ear tag is sleeved on the guide column and can slide; the ear-tagging pushing device is installed at the bracket and drives the ear tag to move to the jaws of the upper clamp and the lower clamp.

[0008] Preferably, the bracket includes a vertical support plate and a horizontal connecting plate, one end of the horizontal connecting plate is fixedly connected to the side of the lower clamp; the vertical support plate is detachably connected to the other end of the horizontal connecting plate, and forms an L-shaped bracket between the vertical support plate and the horizontal connecting plate, and the guide column is installed on the vertical support plate.

[0009] Preferably, a triangular angle is formed between the side wall of the guide column facing the opening side of the ear tag clamp body and the upper surface of the horizontal connecting plate to provide a placement space for inserting the mouse ear.

[0010] Preferably, the ear tag propulsion mechanism further comprises a propulsion slider, which is sleeved on the guide column and is located on the side of the ear tag away from the ear tag clamp body; the outer dimension of the propulsion slider is larger than the dimension of the ear tag to ensure the transmission of the thrust of the ear tag propulsion device.

[0011] Preferably, the ear tag pusher is a spring, which is sleeved on the guide column and compressed.

[0012] Preferably, an upper stopper is provided at the jaw of the upper pliers, and a lower stopper is provided at the jaw of the lower pliers, the upper stopper and the lower stopper are opposite to each other up and down and their side surfaces are aligned; when the first ear tag is pushed to the jaw, the ear tag abuts against the side surfaces of the upper stopper and the lower stopper to achieve positioning.

[0013] Preferably, a limiting gap is formed between the upper stopper, the lower stopper and the end surface of the guide column, so that when the ear tag moves to the jaws, the ear tag is not easily lateral deflected under the squeezing of the upper and lower jaws.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. Through the design of the ear tag pushing mechanism, multiple ear tags are arranged side by side and can slide along the length direction of the guide column. When the first ear tag is installed on the mouse ear under the pressure of the ear tag clamp body, the next ear tag is pushed by the remaining ear tags and the ear tag pusher to detach from the guide column and slide to the jaws of the upper and lower clamps in the ear tag clamp body. By pressing the handles of the upper and lower clamps, the ear tag between the jaws of the upper and lower clamps is bent and installed on the mouse ear. By analogy, continuous ear tagging of mice is achieved.

[0016] 2. As the mouse ears are relatively small, the ear tag needs to be placed near the base of the ear. If the guide post is of the same shape as the ear tag, when the mouse ear is placed between the upper and lower jaws, the guide post may hinder the insertion of the ear and the ear tag cannot be placed at the base of the ear. The triangular angle space formed between the guide post and the upper surface of the horizontal connecting plate provides a placement space for the insertion of the mouse ear and ensures the position of the ear tag.

[0017] 3. By adding a propulsion slider, the outer dimension of the propulsion slider is larger than the dimension of the ear tag, the contact area between the propulsion slider and the ear tag propeller is increased, and the contact area between the ear tag propeller and the ear tag side wall is indirectly increased to ensure the transmission of thrust.

[0018] 4. A stopper is designed at the jaws of the ear tag clamp body, and a limiting gap is formed between the stopper and the end face of the guide column. When the ear tag moves to the jaws, the limiting gap positions the ear tag to prevent the ear tag from being laterally deflected under the squeezing of the upper and lower clamps, and being unable to be fixed on the mouse ear or being fixed loosely. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] As a part of this application, the accompanying drawings are used to provide a further understanding of the present invention.

[0020] Figure 1 The present invention is a schematic structural diagram of a device for continuously marking ear tags according to the present invention.

[0021] Figure 2 It is a schematic diagram of an ear tag being installed on an ear tag pushing mechanism and cooperating with an ear tag clamp body.

[0022] Figure 3 It is a structural schematic diagram of the ear tag propulsion mechanism and the lower clamp assembly.

[0023] Figure 4 It is the front view of the ear tag propulsion mechanism.

[0024] Figure 5 This is a bottom view of the upper jaw.

[0025] Description of reference numerals:

[0026] Ear tag clamp body 1, upper clamp 11, upper stopper 111, lower clamp 12, lower stopper 121;

[0027] The ear tag propulsion mechanism 2 includes a bracket 21 , a vertical support plate 211 , a horizontal connecting plate 212 , a guide column 22 , a propulsion slider 23 , and an ear tag propeller 24 . DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0029] like Figures 1 to 5As shown, an embodiment of the present application provides a device for continuously ear-tagging experimental mice, including an ear-tag clamp body 1 and an ear-tag propulsion mechanism 2. The ear-tag clamp body 1 includes an upper clamp 11 and a lower clamp 12 that are rotatably connected. By pressing the handles of the upper clamp 11 and the lower clamp 12, the ear tag between the jaws of the upper clamp 11 and the lower clamp 12 is bent and installed on the mouse ear.

[0030] The ear tag pushing mechanism 2 is installed on the side of the jaws of the lower clamp 12 and realizes the continuous pushing of multiple ear tags to realize the continuous ear tagging of multiple mice; specifically, the ear tag pushing mechanism 2 includes a bracket 21, a guide column 22, a pushing slider 23 and an ear tag pusher 24, the bracket 21 is installed on the side of the jaws of the lower clamp 12 in the ear tag clamp body 1, one end of the guide column 22 is installed on the bracket 21, and the other end of the guide column 22 extends toward the jaws of the upper clamp 11 and the lower clamp 12. Multiple ear tags are sleeved on the guide column 22 side by side and can slide on the guide column 22; the pushing slider 23 is sleeved on the guide column 22 and is located on the side of the ear tag away from the ear tag clamp body 1, the ear tag pusher 24 is installed on the bracket 21, the driving end of the ear tag pusher 24 is connected to the pushing slider 23 and generates thrust on the pushing slider 23, and the pushing slider 23 pushes the ear tag to move so that the ear tag slides toward the jaws of the ear tag clamp body 1.

[0031] In this embodiment, due to the large number of mice and small ears, when ear-tagging, if one ear tag is marked and another ear tag is placed at the jaws of the ear tag clamp for marking, the marking efficiency is low; in this embodiment, multiple ear tags are arranged side by side through the design of the ear tag pushing mechanism 2 and can slide along the length direction of the guide column 22. When the first ear tag is installed on the mouse ear under the pressure of the ear tag clamp body 1, the next ear tag is pushed by the remaining ear tags, the pushing slider 23 and the ear tag pusher 24. Disengage from the guide column 22 and slide to the jaws of the upper clamp 11 and the lower clamp 12 in the ear tag clamp body 1, and by pressing the handles of the upper clamp 11 and the lower clamp 12, the ear tag between the jaws is bent and installed on the mouse ear, and the next ear tag continues to be pushed to the jaws of the upper clamp 11 and the lower clamp 12, so as to achieve continuous ear tagging of mice. It should also be noted that, since the ear tag pushing mechanism 2 is directly mounted on the side of the lower clamp 12 , it has no effect on the rotation of the upper clamp 11 , and there is no need to modify the upper clamp 11 .

[0032] like Figure 3 and Figure 4As shown, the bracket 21 includes a vertical support plate 211 and a horizontal connecting plate 212, one end of the horizontal connecting plate 212 is fixedly connected to the side of the lower jaw 12 in the ear tag clamp body 1 and is made into one piece, and at the same time, the upper surface of the horizontal connecting plate 212 smoothly transitions to the jaw surface of the lower jaw 12; the vertical support plate 211 is detachably connected to the other end of the horizontal connecting plate 212, and an L-shaped bracket 21 is formed between the horizontal connecting plate 212, and the guide column 22 is vertically installed on the vertical support plate 211, and a gap is left between the lower surface of the guide column 22 and the upper surface of the horizontal connecting plate 212, and the gap value is slightly larger than the thickness of the steel sheet used to make the ear tag, which facilitates the sliding of the ear tag and allows the ear tag to slide smoothly between the jaws of the upper jaw 11 and the lower jaw 12.

[0033] Among them, the vertical support plate 211 and the horizontal connecting plate 212 are connected by screwing. When all the ear tags are used, the vertical support plate 211 and the guide column 22 connected to the vertical support plate 211 are removed from the horizontal connecting plate 212, and the ear tag is put on the guide column 22 to install the ear tag.

[0034] like Figure 4 As shown, the guide post 22 is a trapezoidal column, and a triangular angle is formed between the side wall of the guide post 22 facing the opening side of the ear tag clamp body 1 and the upper surface of the horizontal connecting plate 212, which is convenient for ear tagging of mice. Since mice have relatively small ears, the ear tags need to be placed near the base of the ears. If the guide post 22 adopts the same shape as the ear tag, then when the mouse ear is placed in the jaws between the upper clamp 11 and the lower clamp 12, the guide post 22 may hinder the insertion of the ear, and the ear tag cannot be placed at the base of the ear. A triangular angle space is formed between the guide post 22 and the upper surface of the horizontal connecting plate 212, which provides a placement space for the insertion of the mouse ear without interfering with the guide post 22, thereby ensuring the position of the ear tag.

[0035] like Figure 4 As shown, the pushing slider 23 is a triangular ring structure, the shape of the sliding hole opened on the pushing slider 23 is the same as the cross-sectional shape of the guide column 22, and the external dimension of the pushing slider 23 is larger than the size of the ear tag; since the thickness of the steel sheet used to make the ear tag is relatively thin, if the ear tag pusher 24 directly contacts the side wall of the ear tag, the contact area between the two is relatively small. During the pushing, if the pushing force is large, the ear tag pusher 24 may be separated from the ear tag, and the continuous use of the ear tag cannot be achieved; in this embodiment, a pushing slider 23 is added, the external dimension of the pushing slider 23 is larger than the size of the ear tag, and the size of the internal sliding hole is slightly larger than the size of the guide column 22, so that the contact between the pushing slider 23 and the side wall of the ear tag is ensured, and the contact area between the pushing slider 23 and the ear tag pusher 24 can be increased, and the contact area between the ear tag pusher 24 and the side wall of the ear tag is indirectly increased, thereby ensuring the transmission of thrust.

[0036] like Figure 3 As shown, the ear tag pusher 24 is a spring, which is sleeved on the guide column 22 and is in a compressed state. The spring provides a driving force for the sliding of the ear tag through its own resilience. The ear tag pusher 24 can also be in the form of an electric push rod, which can be selected according to needs.

[0037] like Figure 3 and Figure 5 As shown, an integrated upper stopper 111 is provided at the jaws of the upper pliers 11 and on the side away from the guide column 22, and an integrated lower stopper 121 is provided at the jaws of the lower pliers 12 and on the side away from the guide column 22. The upper stopper 111 in the upper pliers 11 and the lower stopper 121 in the lower pliers 12 are arranged opposite to each other and the surfaces on both sides are even; when the first ear tag is pushed to the jaws, the ear tag abuts against the side surfaces of the upper stopper 111 and the lower stopper 121 to achieve the positioning of the first ear tag and prevent the first ear tag from being pushed out of the jaws of the ear tag pliers body 1.

[0038] Among them, a limiting gap is formed between the upper stop block 111 and the lower stop block 121 and the end face of the guide column 22. The gap value of the limiting gap is slightly larger than the width of the ear tag (the width of the steel sheet used to make the ear tag). When the ear tag moves to the jaws, the limiting gap positions the ear tag to prevent the ear tag from being laterally deflected under the squeezing of the upper clamp 11 and the lower clamp 12, and unable to be fixed on the mouse ear or being fixed loosely.

[0039] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments, and other arrangements may be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the features described in the various dependent claims and herein may be combined in a manner different from that described in the original claims. It may also be understood that the features described in conjunction with the individual embodiments may be used in other described embodiments.

Claims

1. A device for continuously ear-tagging experimental mice, comprising an ear-tagging clamp body (1), wherein the ear-tagging clamp body (1) comprises an upper clamp (11) and a lower clamp (12) which are rotatably connected; characterized in that: The invention also comprises an ear tag propulsion mechanism (2), which comprises a bracket (21), a guide column (22) and an ear tag propulsion device (24). The bracket (21) is mounted on the side of the jaws of the lower jaw (12), the guide column (22) is mounted on the bracket (21), and the ear tag is sleeved on the guide column (22) and can slide. The ear tag propulsion device (24) is mounted on the bracket (21) and drives the ear tag to move to the jaws of the upper jaw (11) and the lower jaw (12).

2. The device for continuous ear tagging of experimental mice according to claim 1, characterized in that: The bracket (21) comprises a vertical support plate (211) and a horizontal connecting plate (212), one end of the horizontal connecting plate (212) is fixedly connected to the side of the lower clamp (12); the vertical support plate (211) is detachably connected to the other end of the horizontal connecting plate (212), and an L-shaped bracket (21) is formed between the vertical support plate (211) and the horizontal connecting plate (212), and the guide column (22) is installed on the vertical support plate (211).

3. The device for continuous ear tagging of experimental mice according to claim 1, characterized in that: A triangular angle is formed between the side wall of the guide column (22) facing the opening side of the ear tag clamp body (1) and the upper surface of the horizontal connecting plate (212), so as to provide a placement space for inserting the mouse ear.

4. The device for continuously ear-tagging laboratory mice according to claim 1, characterized in that: The ear tag propulsion mechanism (2) further comprises a propulsion slider (23), which is sleeved on the guide column (22) and is located at a side of the ear tag away from the ear tag clamp body (1); the outer dimensions of the propulsion slider (23) are larger than the dimensions of the ear tag to ensure the transmission of the thrust of the ear tag propeller (24).

5. The device for continuous ear tagging of experimental mice according to claim 1, characterized in that: The ear tag pusher (24) is a spring, which is sleeved on the guide column (22) and compressed.

6. The device for continuous ear tagging of experimental mice according to claim 1, characterized in that: An upper stopper (111) is provided at the jaw opening of the upper jaw (11), and a lower stopper (121) is provided at the jaw opening of the lower jaw (12); the upper stopper (111) and the lower stopper (121) are opposite to each other in vertical direction and have the same side surfaces; when the first ear tag is pushed to the jaw opening, the ear tag abuts against the side surfaces of the upper stopper (111) and the lower stopper (121) to achieve positioning.

7. The device for continuous ear tagging of experimental mice according to claim 6, characterized in that: A limiting gap is formed between the upper stopper (111) and the lower stopper (121) and the end surface of the guide column (22). When the ear tag moves to the jaws, the ear tag is not prone to lateral deflection under the squeezing of the upper jaw (11) and the lower jaw (12).